The Physics Of Keeping Thermal Power Stations Cool

Thermal power stations are increasingly being throttled or shut down due to rising river temperatures and falling water levels caused by climate change. The piece explains why light water reactors (LWRs) are disproportionately affected — their low thermal efficiency (~30-35%) means they produce far more waste heat than higher-temperature designs. It covers the physics behind this via the Rankine cycle and Carnot's theorem, then surveys cooling options: once-through river/lake cooling, natural draft cooling towers (with the Nine Mile Point Unit 2 retrofit as a case study), forced draft towers, spray ponds, and dry cooling. The conclusion points toward ultra-supercritical steam cycles and Generation IV reactors (pebble bed, molten salt) as the long-term path to reducing waste heat and cooling water dependency.

Source: https://hackaday.com/2026/08/10/the-physics-of-keeping-thermal-power-stations-cool. 8 Sync News only summarizes and links out; content copyright belongs to the authors and original sources.